// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "net/quic/crypto/properties_based_quic_server_info.h"

#include <string>

#include "net/base/net_errors.h"
#include "net/http/http_server_properties_impl.h"
#include "net/quic/quic_server_id.h"
#include "testing/gtest/include/gtest/gtest.h"

namespace net {
namespace test {

    namespace {
        const char kServerConfigA[] = "server_config_a";
        const char kSourceAddressTokenA[] = "source_address_token_a";
        const char kCertSCTA[] = "cert_sct_a";
        const char kChloHashA[] = "chlo_hash_a";
        const char kServerConfigSigA[] = "server_config_sig_a";
        const char kCertA[] = "cert_a";
        const char kCertB[] = "cert_b";
    } // namespace

    class PropertiesBasedQuicServerInfoTest : public ::testing::Test {
    protected:
        PropertiesBasedQuicServerInfoTest()
            : server_id_("www.google.com", 443, PRIVACY_MODE_DISABLED)
            , server_info_(server_id_, &http_server_properties_)
        {
        }

        // Initialize |server_info_| object and persist it.
        void InitializeAndPersist()
        {
            server_info_.Start();
            EXPECT_TRUE(server_info_.IsDataReady());
            QuicServerInfo::State* state = server_info_.mutable_state();
            EXPECT_TRUE(state->certs.empty());

            state->server_config = kServerConfigA;
            state->source_address_token = kSourceAddressTokenA;
            state->server_config_sig = kServerConfigSigA;
            state->cert_sct = kCertSCTA;
            state->chlo_hash = kChloHashA;
            state->certs.push_back(kCertA);
            EXPECT_TRUE(server_info_.IsReadyToPersist());
            server_info_.Persist();
            EXPECT_TRUE(server_info_.IsReadyToPersist());
            EXPECT_TRUE(server_info_.IsDataReady());
            server_info_.OnExternalCacheHit();
        }

        // Verify the data that is persisted in InitializeAndPersist().
        void VerifyInitialData(const QuicServerInfo::State& state)
        {
            EXPECT_EQ(kServerConfigA, state.server_config);
            EXPECT_EQ(kSourceAddressTokenA, state.source_address_token);
            EXPECT_EQ(kCertSCTA, state.cert_sct);
            EXPECT_EQ(kChloHashA, state.chlo_hash);
            EXPECT_EQ(kServerConfigSigA, state.server_config_sig);
            EXPECT_EQ(kCertA, state.certs[0]);
        }

        HttpServerPropertiesImpl http_server_properties_;
        QuicServerId server_id_;
        PropertiesBasedQuicServerInfo server_info_;
        CompletionCallback callback_;
    };

    // Test persisting, reading and verifying and then updating and verifing.
    TEST_F(PropertiesBasedQuicServerInfoTest, Update)
    {
        InitializeAndPersist();

        // Read the persisted data and verify we have read the data correctly.
        PropertiesBasedQuicServerInfo server_info1(server_id_,
            &http_server_properties_);
        server_info1.Start();
        EXPECT_EQ(OK, server_info1.WaitForDataReady(callback_)); // Read the data.
        EXPECT_TRUE(server_info1.IsDataReady());

        // Verify the data.
        const QuicServerInfo::State& state1 = server_info1.state();
        EXPECT_EQ(1U, state1.certs.size());
        VerifyInitialData(state1);

        // Update the data, by adding another cert.
        QuicServerInfo::State* state2 = server_info1.mutable_state();
        state2->certs.push_back(kCertB);
        EXPECT_TRUE(server_info_.IsReadyToPersist());
        server_info1.Persist();

        // Read the persisted data and verify we have read the data correctly.
        PropertiesBasedQuicServerInfo server_info2(server_id_,
            &http_server_properties_);
        server_info2.Start();
        EXPECT_EQ(OK, server_info2.WaitForDataReady(callback_)); // Read the data.
        EXPECT_TRUE(server_info1.IsDataReady());

        // Verify updated data.
        const QuicServerInfo::State& state3 = server_info2.state();
        VerifyInitialData(state3);
        EXPECT_EQ(2U, state3.certs.size());
        EXPECT_EQ(kCertB, state3.certs[1]);
    }

} // namespace test
} // namespace net
